The Steller's jay is a jay native to western North America, closely related to the blue jay found in the rest of the continent, but with a black head and upper body. It is also known as the long-crested jay, mountain jay, and pine jay. It is the only crested jay west of the Rocky Mountains.
Amazingly, the blue color on a Steller’s Jay is entirely structural, meaning that the tiny air spaces in the feathers are just the right size to reflect blue light and no other color. No blue pigments have ever been discovered in the feathers or skin of birds.
No comments:
Post a Comment